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SigmasTek  |  SKU: BW-15648

Union MX-12400 Compatible Replacement Battery 29.14 lb

24% off
Sale price $150.99 USD Regular price $197.99
Shipping calculated at checkout.
Absorbent Glass Mat (AGM) technology for superior performance
Maintenance-free design with spill-proof construction
U.L. Recognized and CE Certified for safety and reliability
Brand new and factory fresh for guaranteed quality
1 year warranty ensuring long-term peace of mind
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Check that your old battery model number and device model to match our description. This makes sure they work together.


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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 40 Ah

Terminal Type

Nut & Bolt

Union Battery MX-12400 Replacement for Union Battery MX-12400

Looking for a reliable replacement battery for your Union Battery MX-12400? This Union Battery MX-12400 replacement delivers dependable compatibility, consistent performance, and proven reliability for critical power applications. Built as a Rechargeable Sealed Lead Acid (SLA) unit with Absorbent Glass Mat (AGM) construction, this high-performance battery is engineered to meet or exceed OEM SLA battery specifications so you can restore full power to your equipment quickly and confidently.

Key Specifications

  • Compatible Model: Union Battery MX-12400
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Voltage: 12 Volts
  • Capacity: 40 Ah
  • Terminal Type: Nut & Bolt
  • Maintenance: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Replacement Brand / SKU Indicator: SigmasTek
  • Meets/Exceeds: OEM SLA battery specifications

Benefits

This Union Battery MX-12400 replacement battery is designed for long service life and reliable performance. The AGM construction provides excellent vibration resistance and low internal resistance for efficient charge acceptance and discharge, making it a truly high-performance battery for demanding use. Because it is maintenance-free and spill-proof, it eliminates the need for periodic electrolyte maintenance and reduces the risk of leaks in enclosed equipment.

Durability is a core feature—this long-lasting battery is manufactured to rigorous quality standards, is U.L. recognized and CE certified, and ships brand new and factory fresh. The robust nut & bolt terminal design ensures secure connections in installations where stable contact is essential. Whether you need a replacement battery for backup power, a UPS, emergency lighting, telecommunication systems, mobility devices, or workshop tools, this unit provides the reliable, sustained power those applications demand.

For businesses and homeowners who depend on uninterrupted power, this replacement battery reduces downtime by offering predictable charging behavior and consistent capacity over its service life. As a cost-effective alternative to OEM packs, it meets or exceeds original specifications so you get OEM-level performance without the premium price.

Ready to replace your Union Battery MX-12400 with a trusted, high-quality option? Add this high-performance, long-lasting replacement battery to your cart today and restore dependable power to your equipment. Purchase now to secure reliable backup and sustained performance.

Technical Specifications

Voltage12 Volts
Amp Hours40 Ah
Terminal TypeNut & Bolt
Length (in.)7.76
Width (in.)6.5
Height (in.)6.69
Weight (lb.)29.11

Product Highlights

  • Brand Replacement : Union Battery MX-12400
  • Manufacturer: SigmasTek
  • Product Type: SLA Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

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